This might be a stupid question, but are you playing in fullscreen-windowed mode?

I occasionally find that Windows will sometimes shift the focus to another program that's running in the background, without actually bringing the window for that program up in front of FFXIV. When this happens, it activates XIV's "Limit frame rate when client is inactive" setting, which I have checked on in System Config and causes my FPS to drop down to like 10 or something.

When it happens, I just need to click anywhere on XIV and it brings it into focus again, fixing the FPS issue.

Back in second year of uni, we had an assignment for our Pop Culture class to compare two comic book movies with the comic books they were adapted from.

Only after spending a week working on my comparisons of Spiderman and Casshern did I remember that Casshern was based on an anime and light novel, not a comic.

An hour or two in Photoshop spent desaturating and screentoning a few screenshots of the anime, and I had some pretty serviceable fake manga panels to drop into my essay. Ended up with a pretty high A grade for the final assignment, and a sense of satisfaction that has never really gone away XD